Public service system and method using autonomous smart car

ABSTRACT

The present invention relates to a system and method for providing a public service using an autonomous smart car, wherein the apparatus and method are able to perform a public service using an autonomous smart car, and the system includes autonomous smart cars and an autonomous smart car managing server managing the autonomous smart cars.

TECHNICAL FIELD

The present invention relates to an autonomous smart car and, moreparticularly, to a system and method for providing a public service,using autonomous smart car.

BACKGROUND ART

Recently, research about autonomous cars is being competitivelyconducted with the rapid development of image processing-relatedtechnologies and the performance of sensor and hardware.

Actually, the navigation system using GPS has already been popularizedas a guide service for novice drivers and the precision of the data isalso being improved to have a small error range in GPS, so thereliability is being increased.

Following this tendency, recently, autonomous cars can automaticallydrive and even park, using cameras for showing front and rear areas,front-side radar sensors, GPS, etc.

Since such an autonomous car is in an unavoidable in the future,research about autonomous cars is being conducted in various areas, butcurrent research in progress has usually only been about autonomousdriving.

DISCLOSURE Technical Problem

The present invention has been made in an effort to solve the problemsin the art and an object of the present invention is to provide a systemand method for providing a public service, using an autonomous car thatcan use image information, which the autonomous car can acquire when itis driving or stopped, to find missing persons or acquire image data atvarious accident scenes.

Technical Solution

In order to achieve the objects of the present invention, a system forproviding a public service using an autonomous smart car includes:autonomous smart cars automatically driving to a destination without adriver when the destination is set, storing images that are inputthrough cameras on the autonomous smart cars together with locationinformation and time information, and wirelessly transmitting facialinformation of a matched person to the air by recognizing faces from theinput or stored images on the basis of pre-stored facial information orwirelessly transmitting image data corresponding to time and locationrequested from a predetermined outside of input or stored data to apredetermined server; and an autonomous smart car managing servermanaging the autonomous smart cars, transmitting faces of missingpersons or facial information of suspects or wanted persons to theautonomous smart cars, transmitting matched facial information to one ormore of a public agency server and a missing person information server,which needs the facial information, depending on whether the facialinformation is matched with a missing person, a suspect, or a wantedperson, when receiving the facial information from the autonomous smartcars, and requesting image information of a crime scene including timeand location to the autonomous smart cars when the public agency serverrequests the image information

The autonomous smart cars may include: a black box unit taking andstoring images of a surrounding of the autonomous smart cars; a facialrecognizing-processing unit recognizing faces of persons from the imagestaken by the camera; a communication unit communicating with theautonomous smart car managing server; an image output unit outputvarious images and displaying corresponding information when a missingperson, a suspect, or a wanted person is found; an autonomous drivingunit autonomously driving the autonomous smart cars; and a control unitcontrolling the autonomous smart cars.

The black box unit may include: a first camera unit taking images ofinside and outside of the cars; a first memory unit storing image datataken by the first camera unit and sound data; and a person extractionunit extracting person information from the images of the outside takenby the first camera unit.

The facial recognizing-processing unit may include: a second camera unittaking images of the outside of the cars; a facial recognition unitmaking data of facial information by recognizing faces of personsextracted from the black box unit or persons in the images taken by thesecond camera unit; a second memory unit stores facial information ofone of a missing person, a suspect, and a wanted person from one of theautonomous smart car managing server, the public agency server, and themissing person information server, and updating the facial informationat a predetermined period; and a facial comparison unit detecting facialinformation of one or more of a missing person, a suspect, and a wantedperson by comparing facial recognition data recognized by the facialrecognition unit with the facial information stored in the second memoryunit.

The image output unit may display a face of a missing person or asuspect and a wanted person, a name of a missing person, and a name anda contact address of a guardian, or displays contact address informationfor recording a suspect or a wanted person.

The autonomous smart car managing server may include: a communicationunit communicating with one of the autonomous smart cars, the publicagency server, and the missing person information server through acommunication network; a public smart car DB storing information aboutautonomous smart cars registered on the public service of the autonomoussmart cars; a facial DB storing facial information transmitted among theautonomous smart cars, the public agency server, and the missing personinformation server; a public agency DB storing information about publicagencies such as a police agent and a fire station and information aboutorganizations for finding missing persons, that is, storing contactaddress information of police stands, police stations, and fire stationsaround the autonomous smart cars and telephone number information of theorganizations for finding missing persons; and an autonomous smart carimage DB storing images transmitted from the autonomous smart cars fordate and location of each of the autonomous smart car.

When image information about a crime scene is requested, the autonomoussmart car managing server may selectively request image information byreferring to corresponding location information and time information toautonomous smart cars agreed with collection of time information andlocation information.

In order to achieve the objects of the present invention, a method ofproviding a public service using an autonomous smart car includes: astep of registering a public autonomous smart car; a step in which anautonomous smart car managing server managing the public autonomoussmart car downloads facial information to a facial DB from a publicagency server and a missing person information server, periodicallyupdates the facial information, and transmits the facial information tothe registered public autonomous smart car; a step in which the publicautonomous smart cars takes images, using a camera unit in theautonomous smart car, and stores the taken image together with timeinformation and location information; a step in which a personextraction unit of the public autonomous smart car extracts persons fromthe taken images, a facial recognition unit recognizes faces of theextracted persons, and a facial comparison unit compares the recognizedfaces with facial information stored in a memory unit; and a step inwhich when the public agency server or the autonomous smart car managingserver requests a surrounding image to the public autonomous smart car,image data corresponding to corresponding date and time is extracted,the extracted image data is wirelessly transmitted to the public agencyserver or the autonomous smart car managing server, and when a matchedperson is detected as a result of recognizing faces in images taken by acamera of the autonomous smart car, facial recognition information andinformation about date, time, and location are transmitted to one ormore of the autonomous smart car managing server, the public agencyserver, and the missing person information server.

The public autonomous smart car may be an autonomous smart car set totransmit a crime scene image when recognizing a face of one or more of amixing person, a suspect, and a wanted person from images taken by itsown black box camera or a separate camera or when receiving a rightfulrequest for the crime scene image, of autonomous smart cars.

An image output unit may output contact address information of aguardian of a missing person together with matched information when amissing person is matched, and may output information about policestands and police stations around the autonomous smart car when asuspect is matched.

The method may further include a step in which when the autonomous smartcar receives a request for tracing a facial recognition target (object)from a user of the autonomous smart car, the autonomous smart carautomatically drives and traces the object and transmits location andimage information to the autonomous smart car managing server, thepublic agency server, and the missing person information server.

Advantageous Effects

The present invention has the following effects.

First, it is possible to help find missing persons, suspects, and wantedpersons by recognizing faces, using a black box camera on an autonomoussmart car or a separate camera.

Second, it is possible to use image data at various accident scenes forpublic good by taking images around the accident scenes, using a blackbox camera on an autonomous smart car or a separate camera, and bytransmitting the images to the outside when a police agency or a firestation requests the images.

DESCRIPTION OF DRAWINGS

FIG. 1 is a block diagram illustrating the configuration of a system forproviding a public service using an autonomous car according to thepresent invention.

FIG. 2 is a block diagram illustrating in detail the configuration of anautonomous smart car managing server shown in FIG. 1.

FIG. 3 is a flowchart illustrating a public service method using anautonomous car according to the present invention.

BEST MODE

Exemplary embodiments of the present invention are described hereafterin detail with reference to the accompanying drawings.

Common terms that are generally used now were selected for terminologiesused herein were selected, but some of them were freely selected by theapplicant(s) is specific cases and the meanings were described in detailat the corresponding part in these cases, so it should be understoodthat the present invention should be construed on the basis of no thename of terms, but the meanings of the terms. Further, technologies wellknown in the art and not directly relevant to the present invention arenot described in the following description of embodiments. This is forclearly communicating the subject of the present invention by omittingunnecessary description.

FIG. 1 is a block diagram illustrating the configuration of a system forproviding a public service using an autonomous car according to thepresent invention.

The system for providing a public service using an autonomous caraccording to the present invention, as shown in FIG. 1, includes anautonomous smart car 100, an autonomous smart car managing server 200, apublic agency server 300, and a missing person information server 400.

The autonomous smart car 100 automatically drives to a destinationwithout a driver when the destination is set, stores images that areinput through cameras on the autonomous smart car 100 together withlocation information and weather information, recognizes faces from theinput or stored images, wirelessly transmits information aboutcorresponding face to one of receiving parts, that is, the autonomoussmart car managing server 200, the public agency server 300, and missingperson information server 400 when the face is that is a missing person,a suspect, or a wanted person, and wirelessly transmits image data,which has been requested by the autonomous smart car managing server 200or the public agency server 300, of stored image data to the receivingpart.

The autonomous smart car 100 includes a black box unit 110, a facialrecognizing-processing unit 120, a communication unit 130, an imageoutput unit 140, an autonomous driving unit 150, an encryption unit 160,and a control unit 170.

The black box unit 110 takes and stores images of the surrounding of theautonomous smart car 100. In general, the black box unit 110 storesimages and sounds inside and outside a vehicle when the vehicle is beingdriven or stopped, but further has a function of extracting persons inthe present invention. The black box unit 110 of the present inventionincludes a first camera unit 111, a first memory unit 112, and a personextraction unit 113.

The first camera unit 111 of the black box unit 110 takes images of theinside and outside of the car.

The first memory unit 112 stores images and sounds taken by the firstcamera unit 111.

The person extraction unit 113 extracts person information from theimages of the outside of the car taken by the first camera unit 111. Inorder to extract the person information, it is possible to use a methodof extracting persons by recognizing faces through a smartphone etc., orof detecting movement. The method of detecting movement can provideintellectual characteristics such as detecting, tracing, classifying,recognizing, and integrating movement and analyzing behaviors with therecent development of the imaging technology, image tracing is performedby a series of calculation modules, and the modules respectively performfunctions of locating objects (persons and things), recognizing objects,and tracing objects. For example, an Active Shape Model (ASM)-basedtracing algorithm models object shapes and matches them to combinationsof information about repeatable movement and coarse-to-fine estimationusing a combination with a Kalman filter provides a stronger result, anda feature-based shape tracing method called Non-Prior Training ActiveFeature model (NPTAFM) is provided in order to reduce load incalculation. Such feature-based object modeling can trace an objectusing considerably less features in comparison to existing shape-basedmodeling requiring the entire shape.

The facial recognizing-processing unit 120 includes a second camera unit121, a facial recognition unit 122, a second memory unit 123, and afacial comparison unit 124.

The second camera unit 121 takes image of the outside of the car.

The facial recognition unit 122 makes facial information by recognizingthe faces of persons extracted by the person extraction unit 113 of theblack box unit 110 or the faces of persons from images taken by thesecond camera unit 121.

The second memory unit 123 stores facial information of missing persons,suspects, and wanted persons from one of the autonomous smart carmanaging server 200, the public agency server 300, and the missingperson information server 400, and updates the information at a setperiod.

The facial comparison unit 124 detects missing persons, suspects, andwanted persons by comparing the facial recognition data made by thefacial recognition unit 122 with the facial information stored in thesecond memory unit 123.

The facial recognizing-processing unit 120 is provided to take images ofsidewalks for pedestrians under the assumption that the black box unit110 takes images of the front and rear areas of the car. Obviously, whenthe black box unit 110 takes images of the entire surrounding of thecar, there may be no need for the second camera unit 121.

The communication unit 120 performs wireless communication with one ormore of the autonomous smart car managing server 200, the public agencyserver 300, and the missing person information server 400 outside theautonomous smart car 100.

The image output unit 140 outputs various images and displayscorresponding information when a missing person, a suspect, or a wantedperson is found. The image output unit can display the faces of missingpersons, suspects, or wanted persons, the name of missing persons andthe name and contact addresses of guardians or displays contact addressinformation for reporting wanted persons or suspects so that a user ofthe autonomous smart car 100 can take the follow-up measures (forexample, meeting or reporting a missing person).

The autonomous driving unit 150, which is provided for autonomouslydriving the autonomous smart car 100, may include a location informationreceiving unit 151, a traffic information receiving unit 152, and anautonomous driving control unit 153.

The location information receiving unit 151 receives the currentlocation information of the car. For example, it receives GPSinformation.

The traffic information receiving unit 152 receives traffic informationto the destination while the autonomous smart car 100 is driven.

The autonomous driving control unit 153, which enables the locationinformation receiving unit 151 to receive the current location of thecar and the autonomous smart car 100 to automatically drive to thedestination, controls the steering system, brake system, accelerationsystem, transmission etc. of the car.

The encryption unit 160 decodes received facial information or encodesand transmits facial information or image information of a crime sceneto be transmitted outside.

The control unit 170 controls the autonomous smart car 100 and receivesfacial information from the outside through the communication unit 130,or controls the communication unit 130 to transmit a face information tothe outside when a matched face is recognized by the facialrecognizing-processing unit 120. Further, discrimination informationthat is set in advance is stored to discriminate requested informationin order to transmit requested information only for rightful requests.This information may be set in advance between the autonomous smart car100 and the autonomous smart car managing server 200, the public agencyserver 300, and the missing person information server 400.

The autonomous smart car managing server 200 manages the autonomoussmart car 100, transmits the faces of missing persons or facialinformation of suspects or wanted persons to the autonomous smart car100. Further, when receiving matched facial information from theautonomous smart car 100, the autonomous smart car managing server 200transmit the facial information to the public agency server 300 or themissing person information server 400 that needs the facial information,depending on whether the facial information is matched with a missingperson, a suspect, or a wanted person. When image information of a crimescene including time and location is requested from the public agencyserver 300, the autonomous smart car managing server 200 requests animage with identification information set in advance to autonomous smartcars that applied for a public service of autonomous smart cars 100. Tothis end, there may be actually problematic factors when the autonomoussmart car managing server 200 manages all autonomous smart cars, so itcan request image information including time and location requested fromthe public agency server 300 to autonomous smart cars that applied forpublic service. It may be possible to request the information to allmembers of autonomous smart cars or may be possible to selectivelyrequest the information by referring to corresponding location and timeto autonomous smart cars that agreed with collection of date andlocation information.

The public agency server 300 may be a server of a police agency or afire station etc. When the public agency server 300 is the server of apolice agency, the server requests images of an area where a missingperson, a suspect, a wanted person, or a criminal (a hit-and-run driver,a robber, or a thief) was found, including information about the areaand time, to the autonomous smart car managing server 200. When thepublic agency server is the server of a fire station and the reason ofignition including a fire is unclear, the server requests images of acorresponding area, including information about the area and time, tothe autonomous smart car managing server 200.

The missing person information server 400 is a server storinginformation about missing persons to find missing persons and themission person information may be facial information, name information,age information, contact address information about the missing personclothing colors worn when gone missing, missing place information, etc.The missing person information server 400 transmits pictures of thefaces of missing persons to the autonomous smart car managing server200.

FIG. 2 is a block diagram showing in detail the configuration of anautonomous smart car managing server shown in FIG. 1.

The autonomous smart car managing server 200, as shown in FIG. 2,includes a communication unit 210, an autonomous smart car DB 220, apublic service smart car DB 230, a facial DB 240, a public agency DB250, an autonomous smart car image DB 260, and a control unit 270.

The communication unit 210 communicates with the autonomous smart car100, the public agency server 300, and the missing person informationserver 400 through a communication network 500. The communicationnetwork 500 is a wire/wireless communication network.

The autonomous smart car DB 220 stores user information (name, contactaddress, etc.) of the driver of the autonomous smart car 100 and carinformation (model name, manufacturing year, etc. of a car).

The public service smart car DB 230 stores information about autonomoussmart cars registered on the public service of autonomous smart cars100. As the information about autonomous smart cars registered on thepublic service, not only the user information (name, contact address,etc.) and car information (model name, manufacturing year, etc. of acar), but individual identification information set for autonomous smartvehicles 100 to determine whether requested information is rightfulinformation when image data stored in the black box unit 110 or thefirst memory unit 112 of the facial recognition unit 120 is requestedfor the autonomous smart car 100 are stored. Further, the drivinginformation of cars registered on the public service, that is, themovement path information for each time unit is stored. The movementpath information for each time unit is used later to request images of acrime scene.

The facial DB 240 stores facial information that is transmitted amongthe autonomous smart car 100, the public agency server 300, and themissing person information server 400. Further, for a missing person,information of the name of the missing person and the name and addressof a guardian may be stored together.

The public agency DB 250 stores information about public agencies suchas a police agency and a fire station and the organizations that findmissing persons. The information about public agency may be the contactaddress information of police stands, police stations, and fire stationsaround autonomous cars. The telephone number information oforganizations that find missing persons may also be included.

The autonomous smart car image DB 260 stores the images transmitted fromautonomous smart cars 100 for each car, date, and location. The imagesare stored in a database for a predetermined period in accordance withthe sizes. The memory size of the first memory unit 112 of the black boxunit 110 or the second memory 123 of the facial recognizing-processingunit 120 in an autonomous smart car is deleted in a FIFO (First In FirstOut) method, so images transmitted from autonomous smart cars are backedup for a predetermined time, depending on the memory sizes of autonomoussmart cars.

The control unit 270 controls the autonomous smart car managing server200.

FIG. 3 is a flowchart illustrating a public service method using anautonomous car according to the present invention.

The public service method using an autonomous car according to thepresent invention, as shown in FIG. 3, registers a public autonomoussmart car (S100). The public autonomous smart car is an autonomous smartcar that is set to transmit a crime scene image when recognizing theface of a missing person, a suspect, or a wanted person from imagestaken by its own black box camera 111 or a separate second camera 121 orwhen receiving a rightful request for the crime scene image, ofautonomous smart cars that can automatically drive without a driver.

The autonomous smart car managing server 200 that manages the publicautonomous smart car downloads facial information to the facial DB 240from the public agency server 300 and the missing person informationserver 400, and periodically updates the facial information (S110). Theautonomous smart car managing server 200 transmits facial information tothe public autonomous smart car. Further, the public autonomous smartcar stores the facial information in the second memory unit 124.

Then, the public autonomous smart car takes images using the first andsecond camera units 111 and 121 and stores the images (S120). Timeinformation and location information are stored together withcorresponding images. While images are taken, the person extraction unit113 of the public autonomous smart car extracts persons from the images,the facial recognition unit 122 recognizes the faces of the extractedpersons, and the facial comparison unit 124 compares the recognizedfaces with the facial information stored in the second memory 123.

The control unit 160 of the public autonomous smart car determineswhether an event has occurred (S130).

The event occurs when a surrounding image is requested through thepublic agency server 300 or the autonomous smart car managing server 200and a same person is detected as the result of recognizing faces fromthe images taken by the first and second camera units 111 and 112 of theautonomous smart car 100.

When a surrounding image is requested through public agency server 300or the autonomous smart car managing server 200, image datacorresponding to the corresponding data and time is extracted (S140).The image data may correspond to the image at the current location ofthe autonomous smart car 100 or a past image obtained by referring tothe driving record of the autonomous smart car stored in the publicservice smart car DB 230 of the autonomous smart car managing server200. Obviously, image data corresponding to the date and time requestedfrom the public agency server exists in the autonomous smart car imageDB 230 of the autonomous smart car managing server 200, the image datais not requested for the public autonomous smart car.

The autonomous smart car 100 wirelessly transmits the extracted imagedata to the public agency server 300 or the autonomous smart carmanaging server 200 that is the receiving part that requested the imagedata.

When the even is facial recognition by the facial recognizing-processingunit 120, facial recognition information is output to the image outputunit (S160). In this case, for a missing person, the information (name,contact address, etc.) of a guardian of the missing person is outputtogether with matched information. For a suspect, the information aboutpolice stands and police stations around the autonomous smart can mayalso be output.

Accordingly, if there is a user in the autonomous smart car, he/she cantake follow-up measures in person. In particular, for a suspect or awanted person, the user can report to the police etc., and for a missingperson, the user can try to talk with the missing person or may contactthe guardian if the missing person is a dotard or a child.

Further, facial recognition information and information of date, time,and location are transmitted to the autonomous smart car managing server200, the public agency server 300, and the missing person informationserver 400.

Meanwhile, when the autonomous smart car 100 is requested to trace afacial recognition target (object) from a user of an autonomous smartcar, it automatically drives and traces the object and transmitslocation and image information to the autonomous smart car managingserver 200, the public agency server 300, and the missing personinformation server 400 (S190). This tracing is performed until a tracingend instruction is input (S200).

The present invention was described with reference to the accompanyingdrawings, but it is only an embodiment of various embodiments includingthe subject of the present invention on the purpose of allowing thoseskilled in the art to easily accomplish the present invention, and thepresent invention is not limited to the embodiment described above.Accordingly, the protective range of the present invention should beconstrued on the basis of the following claims and all technical spiritswithin an equivalent range through change, replacement, and modificationin the range of the scope of the present invention will be included inthe range of the right of the present invention. Further, some of thecomponents shown in the drawings may be exaggerated or contracted forclear description.

INDUSTRIAL APPLICABILITY

The present invention can be used to search for missing persons,suspects, and wanted persons by recognizing faces, using a black boxcamera or a separate camera on an autonomous smart car and can use imagedata for handling accidents at various accident scenes by automaticallytransmitting images around the scenes taken by a black box camera or aseparate camera on an autonomous smart car, when the images arerequested from the outside for example a police agent or a fire house.

The invention claimed is:
 1. A system for providing a public serviceusing an autonomous smart car, the system comprising: autonomous smartcars automatically driving to a destination when the destination is set,storing images that are input through cameras on the autonomous smartcars together with location information and time information, andwirelessly transmitting facial information of a matched person to apredetermined outside by recognizing faces from the input or storedimages on the basis of pre-stored facial information or wirelesslytransmitting image data corresponding to time and location requestedfrom the outside of input or stored data to a predetermined server; andan autonomous smart car managing server managing the autonomous smartcars, transmitting faces of missing persons or facial information ofsuspects or wanted persons to the autonomous smart cars, transmittingmatched facial information to one or more of a public agency server anda missing person information server, which needs the facial information,depending on whether the facial information is matched with a missingperson, a suspect, or a wanted person, when receiving the facialinformation from the autonomous smart cars, and requesting imageinformation of a crime scene including time and location to theautonomous smart cars when the public agency server requests the imageinformation, wherein upon image information about a crime scene beingrequested, the autonomous smart car managing server selectively requestsimage information by referring to corresponding location information andtime information to autonomous smart cars agreed with collection of timeinformation and location information, wherein each of the autonomoussmart cars includes: a black box unit taking and storing images of asurrounding of the each of the autonomous smart cars; a facialrecognizing-processing unit recognizing faces of persons from the imagestaken by a camera; a communication unit communicating with theautonomous smart car managing server; an image output unit outputtingvarious images and displaying corresponding information when a missingperson, a suspect, or a wanted person is found; an autonomous drivingunit autonomously driving the each of the autonomous smart cars; and acontrol unit controlling the each of the autonomous smart cars, whereinthe black box unit includes: a first camera taking images of inside andoutside of the each of the autonomous smart cars; a first memory unitstoring image data taken by the first camera and sound data; and aperson extraction unit extracting person information from the images ofthe outside taken by the first camera, wherein the facialrecognizing-processing unit includes: a second camera taking images ofthe outside of the each of the autonomous smart cars; a facialrecognition unit making data of facial information by recognizing facesof persons extracted from the black box unit or persons in the imagestaken by the second camera; a second memory unit storing facialinformation of one of a missing person, a suspect, and a wanted personfrom one of the autonomous smart car managing server, the public agencyserver, and the missing person information server, and updated facialinformation that is updated at a predetermine period; and a facialcomparison unit detecting facial information of one or more of a missingperson, a suspect, and a wanted person by comparing facial recognitiondata recognized by the facial recognition unit with the facialinformation stored in the second memory unit.
 2. The system of claim 1,wherein the image output unit displays a face of a missing person or asuspect or a wanted person, a name of a missing person, and a name and acontact address of a guardian, or displays contact address informationfor recording a suspect or a wanted person.
 3. The system of claim 1,wherein the autonomous smart car managing server includes: acommunication unit communicating with one of the autonomous smart cars,the public agency server, and the missing person information serverthrough a communication network; a public smart car database storinginformation about the autonomous smart cars registered on the publicservice of the autonomous smart cars; a facial database storing facialinformation transmitted among the autonomous smart cars, the publicagency server, and the missing person information server; a publicagency database storing information about public agencies andinformation about organizations for finding missing persons, that is,storing contact address information of police stands, police stations,and fire stations around the autonomous smart cars and telephone numberinformation of the organizations for finding missing persons; and anautonomous smart car image database storing images transmitted from theeach of the autonomous smart cars for date and location.
 4. A method ofproviding a public service using an autonomous smart car, the methodcomprising: by the autonomous smart car, automatically driving to adestination when the destination is set; by the autonomous smart car,storing images that are input through cameras on the autonomous smartcar together with location information and time information; by theautonomous smart car, wirelessly transmitting facial information of amatched person to a predetermined outside by recognizing faces from theinput or stored images on the basis of pre-stored facial information orwirelessly transmitting image data corresponding to time and locationrequested from the outside of input or stored data to a predeterminedserver; by an autonomous smart car managing server, managing autonomoussmart cars; by the autonomous smart car managing server, transmittingfaces of missing persons or facial information of suspects or wantedpersons to the autonomous smart cars; by the autonomous smart carmanaging server, transmitting matched facial information to one or moreof a public agency server and a missing person information server, whichneeds the facial information, depending on whether the facialinformation is matched with a missing person, a suspect, or a wantedperson, when receiving the facial information from the autonomous smartcars; and by the autonomous smart car managing server, requesting imageinformation of a crime scene including time and location to theautonomous smart cars when the public agency server requests the imageinformation, wherein upon image information about a crime scene beingrequested, the autonomous smart car managing server selectively requestsimage information by referring to corresponding location information andtime information to autonomous smart cars agreed with collection of timeinformation and location information, wherein each of the autonomoussmart cars includes: a black box unit taking and storing images of asurrounding of the each of the autonomous smart cars; a facialrecognizing-processing unit recognizing faces of persons from the imagestaken by a camera; a communication unit communicating with theautonomous smart car managing server; an image output unit outputtingvarious images and displaying corresponding information when a missingperson, a suspect, or a wanted person is found; an autonomous drivingunit autonomously driving the each of the autonomous smart cars; and acontrol unit controlling the each of the autonomous smart cars, whereinthe black box unit includes: a first camera taking images of inside andoutside of the each of the autonomous smart cars; a first memory unitstoring image data taken by the first camera and sound data; and aperson extraction unit extracting person information from the images ofthe outside taken by the first camera, wherein the facialrecognizing-processing unit includes: a second camera taking images ofthe outside of the each of the autonomous smart cars; a facialrecognition unit making data of facial information by recognizing facesof persons extracted from the black box unit or persons in the imagestaken by the second camera; a second memory unit storing facialinformation of one of a missing person, a suspect, and a wanted personfrom one of the autonomous smart car managing server, the public agencyserver, and the missing person information server, and updated facialinformation that is updated at a predetermine period; and a facialcomparison unit detecting facial information of one or more of a missingperson, a suspect, and a wanted person by comparing facial recognitiondata recognized by the facial recognition unit with the facialinformation stored in the second memory unit.
 5. The method of claim 4,wherein the autonomous smart car is set to transmit a crime scene imagewhen recognizing a face of one or more of a missing person, a suspect,and a wanted person from images taken by its own black box camera or aseparate camera or when receiving a rightful request for the crime sceneimage.
 6. The method of claim 4, further comprising outputting thecomparison result from the facial comparison unit through an imageoutput unit of the autonomous smart car, wherein the outputting throughthe image output unit outputs contact address information of a guardianof a missing person together with matched information when a missingperson is matched, and outputs information about police stands andpolice stations around the autonomous smart car when a suspect ismatched.
 7. The method of claim 4, further comprising a step in whichwhen the autonomous smart car receives a request for tracing a facialrecognition target from a user of the autonomous smart car, theautonomous smart car automatically drives and traces the target andtransmits location and image information to the autonomous smart carmanaging server, the public agency server, and the missing personinformation server.